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SI-3000N Series
■External Dimensions
(Unit : mm)
φ3.2 ±0.2
10 ±0.2 4.2 ±0.2 2.8 ±0.2
16.9 ±0.3 7.9 ±0.2
(13.5)
4 ±0.2
a
b
2 max. 0.5
0.95 ±0.15
0.85 +0.2
–0.1
2.6 ±0.15
a. Part Number
b. Lot Number
Pin Assignment
q GND
w VO
e VIN
P3.4 ±0.1 ×2=6.8
0.45 +0.2
–0.1
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 2.3g
q w e
■Block Diagram
3
Tr1
2
MIC
Reg.
Protection
Drive
Amp.
VREF
1
■Typical Connection Diagram
D1
*2
VIN
3 2
SI-3000N
+
*1
+
DC Input
1
C1
C2
GND
C0
VO
DC Output
GND
C0 : Output capacitor (47 to 100µF)
*1 C1 : Oscillation prevention capacitor
C2 (C1: Approx. 47µF, C2: 0.33µF)
These capacitors are required if the input line contains
inductance or the wiring is long. Especially at low temperatures,
tantalum capacitors are recommended for C1 and C0.
*2 D1 : Protection diode
This diode is required for protection against reverse biasing of
the input and output. Sanken EU2Z is recommended.
■Ta-PD Characteristics
15
Infinite heatsink
With Silicone Grease
Heatsink: Aluminum
Power Dissipation PD (W)
10
5
Without heatsink
200×200×2mm (2.3°C/W)
100×100×2mm (5.2°C/W)
75×75×2mm (7.6°C/W)
0
–30 0 25 50 75 100
Ambient Temperature Ta (°C)
PD=IO•[VIN(mean)–VO]
IC
35